CN105498384B - A kind of organic exhaust gas decentralised adsorption concentrates desorption recovery system and method - Google Patents
A kind of organic exhaust gas decentralised adsorption concentrates desorption recovery system and method Download PDFInfo
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- CN105498384B CN105498384B CN201610036409.8A CN201610036409A CN105498384B CN 105498384 B CN105498384 B CN 105498384B CN 201610036409 A CN201610036409 A CN 201610036409A CN 105498384 B CN105498384 B CN 105498384B
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- desorption
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- exhaust gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3408—Regenerating or reactivating of aluminosilicate molecular sieves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Treating Waste Gases (AREA)
Abstract
Desorption recovery system and method are concentrated the invention discloses a kind of decentralised adsorption, recovery system includes adsorbent equipment, desorption retracting device and supervising device, recovery method includes adsorbing and desorption recovery process, absorption process is desorbed recovery process and is reclaimed base concentration progress desorption recovery using in desorption using independent, separable adsorbent equipment distributing progress waste gas absorption.The present invention takes decentralised adsorption to organic exhaust gas, the governance model for concentrating desorption to reclaim, waste gas pollution control and treatment investment is low, concentrate desorption reclaimer utilization rate high, independent adsorbent equipment is connected by snap joint with desorption retracting device, easy installation and removal, transport exchanges flexible, and its economic and social benefit is considerable, wide market.
Description
Technical field
The present invention relates to a kind of gas recovery system and method, more particularly to a kind of organic exhaust gas decentralised adsorption concentrates de-
Attached recovery system and method.
Background technology
At present, the improvement for organic exhaust gas mainly uses activated carbon（NACF, molecular sieve）Adsorption tanks+nitrogen takes off
Attached+UF membrane, activated carbon（NACF, molecular sieve）Adsorption tanks+steam desorption+rectifying and activated carbon（NACF, point
Son sieve）The technical matters integrated modes such as adsorption tanks+air desorption, rectifying, UF membrane.Will be using this governance model, it is necessary to set
Put and reclaim set of processing equipment including adsorption and desorption, and the condition such as supporting steam, cold and hot matchmaker could be realized, and purchase
Set of processing equipment and supporting steam, cold and hot matchmaker's facility, not only price is high, and floor space is big, and operating cost is high,
Therefore, only a small number of large-scale and big enterprises of organic exhaust gas discharge capacity have economic capability to use this complete processing equipment at present,
Most of middle-size and small-size organic exhaust gas discharge enterprises are but straight because being selected can not bearing the expensive price and operating cost of complete equipment
Run in and put, severe contamination is caused to environment.
Attention year by year with country to efforts at environmental protection, many middle-size and small-size organic exhaust gas discharge enterprises because discharge it is not up to standard and
Cause enterprise to close, stop, merge and shift, not only influence local economic development, and a large amount of personnel is lost the job.As Hebei province Baoding is male
There is printing enterprise 2700 in county, and family up to more than 2500 of its medium-sized and small enterprises, these medium-sized and small enterprises purchase organic exhaust gas because powerless
Complete processing equipment, tail gas is directly discharged in air, causes this area's severe environmental pollution, and also the moment is faced with and closed down for enterprise
And turn.Therefore, such as how minimum economic input, the middle-size and small-size organic exhaust gas discharge enterprise of effective solution can low expense purchase
Organic waste gas treatment equipment is put so that the problem of emission compliance, be each middle-size and small-size VOCs treatment enterprise be badly in need of solving one
Hang-up.
The content of the invention
Present invention aim to address current VOCs treatment problem, and provide that a kind for the treatment of cost is low, organic efficiency
High organic exhaust gas decentralised adsorption concentrates desorption recovery system and method.
What the recovery system of above-mentioned purpose of the present invention was realized in：A kind of decentralised adsorption concentrates desorption recovery system,
Including adsorbent equipment, desorption retracting device and supervising device；Described desorption retracting device includes heater, blower fan, resolution gas
Body tank, ice chest, vavuum pump, organic solvent recycling can, filter, condenser, vacuum tank；Described monitoring system is visited including gas
Survey device, pressure gauge and each control valve, it is characterised in that：Described adsorbent equipment is at least two groups in parallel with desorption retracting device
Connection, every group of adsorbent equipment includes casing and the adsorption tanks being arranged in casing, and described adsorption tanks have adsorbed at least one
The adsorption tanks of saturation adsorption tanks to be resolved and a unadsorbed or unadsorbed saturation；The top of the adsorption tanks is provided with solution
Analysis gas feed and exhaust outlet, the bottom of side are provided with exhaust gas inlet, bottom and are provided with solvent outlet, are internally provided with absorption
Material；Parsing gas feed is connected with heater, blower fan and resolution gas body tank successively by valve；Exhaust gas inlet by valve with
Ice chest, vavuum pump and the connection of organic solvent recycling can, import of the solvent outlet by valve successively with filter and condenser connect
Connect, exhaust outlet is connected by valve with gas detector, the outlet of condenser passes through valve and parsing gas tank and ice chest respectively
Connection, vacuum tank is connected with condenser and ice chest respectively, while being connected by valve with organic solvent recycling can.
Described casing is the container structure of standard, and described adsorption tanks are embedded in casing.
Parsing gas feed, exhaust gas inlet, exhaust outlet and the solvent outlet of described adsorption tanks both pass through casing and passed through
Flexible joint is connected with valve.
Described flexible joint is made up of snap joint or flange and metal hose, and snap joint or flange are fixedly connected on
The two ends of metal hose.
What the method for above-mentioned purpose of the present invention was realized in：A kind of organic exhaust gas decentralised adsorption concentrates desorption recovery side
Method, including absorption and desorption recovery process, it is characterised in that：Described absorption process is using independent, separable adsorbent equipment
Distributing carries out waste gas absorption, and described desorption recovery process, which uses to concentrate in desorption recovery base, carries out desorption recovery；By institute
State independent, separable adsorbent equipment and Waste gas outlet absorption waste gas, after adsorption saturation, conveying are connected to by deduster respectively
Base concentration is reclaimed to desorption to be desorbed, the mixed solvent after desorption is by separating and recovering to obtain organic solvent.
The present invention reclaims base, each organic waste in the concentration desorption that organic exhaust gas sets up very well equipped with discharging enterprises assembling
Gas discharge enterprise can reclaim base purchase to desorption or rent the suction of corresponding sorbing material according to the organic exhaust gas classification of discharge
Adsorption device, is connected to organic exhaust gas floss hole by sack cleaner and adsorbs waste gas, after adsorbent equipment adsorption saturation, more renew
Adsorbent equipment, delivers to desorption recovery base concentration by the adsorbent equipment of adsorption saturation and is desorbed, the mixed solvent warp after desorption
Cross separating-purifying and reclaim to obtain organic solvent.
Compared with prior art, it is an advantage of the invention that：
1st, invest that low, utilization rate is high, area coverage is wide.It is a set of perfect that the desorption recovery base that foundation is concentrated only needs to outfit
Desorption reclaimer and the auxiliary facility such as steam, cold and hot matchmaker, waste gas recovery clothes can be provided to the producer in 300 kilometers of circumference
Business.The enterprise for handling organic exhaust gas is respectively needed to only need to buy or rent single group adsorbent equipment, its expense is only to purchase the whole series to set
Standby 20%, the expense of rental is lower, and installs easy to connect, and floor space is small, has not only saved desorption equipment and steam, cold
The investment of the auxiliary facilities such as heating agent, and save operating cost and personnel's spending.In addition, by each enterprise's scattered adsorption saturation
Adsorbent equipment focus on desorption reclaim base carry out desorption recovery, substantially increase desorption reclaim base utilization rate of equipment and installations.
2nd, easy installation and removal, transport is exchanged flexible.The present invention is carried out using independent, separable adsorbent equipment distributing
Waste gas is adsorbed, and is connected between adsorbent equipment and desorption apparatus using flexible quick connector, easy installation and removal, while by adsorption tanks
It is embedded in the casing of TEU (Twenty-foot Equivalent Unit) structure, transport is exchanged flexible.
3rd, economic and social benefit is considerable, wide market.The present invention takes organic exhaust gas decentralised adsorption, concentrates
The governance model reclaimed is desorbed, environmental protection treatment can be carried out to the medium-sized and small enterprises of the tens thousand of organic exhaust gas discharges in the whole nation.If by one
The individual daily recycling design in base is 300 tons, and by 5000 yuan per ton calculating, 3,000,000 yuan of income can be obtained daily, while reducing daily
Pollution of 300 tons of solvents to air, its economic benefit and social benefit are considerable, wide market.
Brief description of the drawings
Fig. 1 is present system flow chart.
Fig. 2 is adsorbent equipment structural representation of the present invention.
Fig. 3 is adsorbent equipment connection diagram of the present invention.
In figure：Casing 1, adsorption tanks 2, adsorption saturation adsorption tanks 2A to be resolved, the suction of unadsorbed or unadsorbed saturation
Attached tank 2B, parsing gas feed 2A1 and 2B1, exhaust gas inlet 2A2 and 2B2, exhaust outlet 2A3 and 2B3, solvent outlet 2A4 and
2B4, sorbing material 2A5 and 2B5, heater 3, blower fan 4, parsing gas tank 5, ice chest 6, vavuum pump 7, organic solvent recycling can 8,
Filter 9, condenser 10, vacuum tank 11, gas detector 12, pressure gauge 13, flexible joint 14, snap joint 14a, metal are soft
Pipe 14b.
Embodiment
The present invention is further detailed explanation for following examples combination accompanying drawing.
Referring to Fig. 1~Fig. 2, a kind of decentralised adsorption of the invention concentrates desorption recovery system, including adsorbent equipment, is desorbed back
Receiving apparatus and supervising device.Adsorbent equipment is at least two groups and is connected in parallel with desorption retracting device that every group of adsorbent equipment includes case
Body 1 and the adsorption tanks 2 being arranged in casing 1, casing 1 are the container structure of standard, and adsorption tanks 2 are embedded in casing 1.Absorption
Tank 2 is at least one adsorption saturation adsorption tanks 2A to be resolved and the adsorption tanks 2B of a unadsorbed or unadsorbed saturation, sheet
Embodiment is an adsorption saturation adsorption tanks 2A and a unadsorbed adsorption tanks 2B to be resolved.Desorption retracting device includes
Heater 3, blower fan 4, parsing gas tank 5, ice chest 6, vavuum pump 7, organic solvent recycling can 8, filter 9, condenser 10 and true
Slack tank 11, the present embodiment parsing gas tank 5 is nitrogen pot.Monitoring system includes gas detector 12, pressure gauge 13, switch board
（It is not drawn into figure）With each control valve.Be respectively arranged with adsorption tanks 2A and 2B top parsing gas feed 2A1 and 2B1,
Exhaust outlet 2A3 and 2B3, the bottom of side are respectively arranged with exhaust gas inlet 2A2 and 2B2, bottom and are respectively arranged with solvent outlet
2A4 and 2B4, inside are respectively arranged with sorbing material 2A5 and 2B5, and sorbing material 2A5 and 2B5 are activated carbon or NACF
Or molecular sieve, the present embodiment is activated carbon.Parse gas feed 2A1 and 2B1 respectively by valve successively with heater 3, blower fan 4
Connected with resolution gas body tank 5；Exhaust gas inlet 2A2 and 2B2 pass through valve and ice chest 6, vavuum pump 7 and organic solvent recycling can respectively
8 connections, the import of solvent outlet 2A4 and 2B4 respectively by valve successively with filter 9 and condenser 10 is connected, exhaust outlet 2A3
It is connected respectively by valve with gas detector 12 with 2B3, the output signal and switch board of gas detector 12（Do not drawn in figure
Go out）Connection, by the remote on-line monitoring device monitoring adsorption tanks 2A and 2B that are arranged in switch board saturated conditions.Condenser
10 outlet is connected by valve with parsing gas tank 5 and ice chest 6 respectively, and vacuum tank 11 connects with condenser 10 and ice chest 6 respectively
Connect, while being connected by valve with organic solvent recycling can 8.Pressure is connected between filter 9 and condenser 10 and vavuum pump 11
Power table 13.
Parsing the gas feed 2A1 and 2B1 of adsorption tanks 2, exhaust gas inlet 2A2 and 2B2, exhaust outlet 2A3 and 2B3 and solvent go out
Mouth 2A4 and 2B4 both passes through casing 1 and is connected by flexible joint 14 with valve（Referring to Fig. 3）.Flexible joint 14 is by snap joint
14a or flange and metal hose 14b compositions, snap joint 14a or flange are fixedly connected on metal hose 14b two ends.Flange
For lap joint flange.
A kind of organic exhaust gas decentralised adsorption of the present invention concentrates desorption recovery method, including absorption and desorption recovery process.
Absorption process carries out waste gas absorption using independent, separable adsorbent equipment distributing, and desorption recovery process, which is used, to be desorbed back
Receive base and concentrate progress desorption recovery.Independent, separable adsorbent equipment is connected to each waste gas by sack cleaner respectively
Floss hole adsorbs waste gas, after the remote on-line monitoring device monitoring that is arranged in switch board to adsorbent equipment adsorption saturation,
By exhaust gas inlet and exhaust outlet with quick lid closing, the adsorbent equipment more renewed is then defeated by the adsorbent equipment of adsorption saturation
Deliver to desorption recovery base concentration to be desorbed, the mixed solvent after desorption is by separating and recovering to obtain organic solvent.
Present invention desorption process is one kind of nitrogen desorption, steam desorption and air desorption, and the present embodiment is de- using nitrogen
It is attached；One kind that process is rectifying separation, UF membrane and cryogenic separation is separated and recovered, the present embodiment is separated using rectifying.
The course of work of the present embodiment is（The present embodiment organic exhaust gas is 93# gasoline）：Adsorption saturation is to be resolved
Adsorption tanks 2A and unadsorbed adsorption tanks 2B is connected by valve with desorption retracting device, now, adsorption tanks 2A parsing gas
Import 2A1 and solvent outlet 2A4 is opened, and exhaust gas inlet 2A2 and exhaust outlet 2A3 are closed with quick lid；Adsorption tanks 2B waste gas enters
Mouth 2B2 and exhaust outlet 2B3 is opened, and parsing gas feed 2B1 and solvent outlet 2B4 are closed with quick cover.Parse in gas tank 5
Nitrogen enters the adsorption tanks 2A for entering adsorption saturation after heater 3 is heated by parsing gas feed 2A1 by blower fan 4, right
Adsorption tanks 2A is heated, the nitrogen containing organic gas and on a small quantity solvent outlet 2A4 of organic mixed solvent from adsorption tanks 2A
Outflow, enters condenser 10 through the filtering of filter 9, and condensed rear a large amount of mixed organic solvents flow into vacuum tank 11, and nitrogen is through cold
Condenser 10 is recycled to parsing gas tank 5 and recycled after cooling down；When adsorption tanks 2A temperature reaches 70~80 degree, parsing gas enters
Mouth 2A1 is closed, and a large amount of high temperature organic solvent gas are flowed out by vavuum pump 7 from solvent outlet 2A4 in adsorption tanks 2A, through filter
9 filterings enter condenser 10, enter back into ice chest 6 and cool down, and a large amount of mixed organic solvents flow into vacuum after condensed device 10 and ice chest 6
Tank 11, the gas after cooling enters absorption from adsorption tanks 2B exhaust gas inlet 2B2, and gas up to standard is discharged by exhaust outlet 2B3,
Organic solvent of the mixed organic solvents through the isolated sterling of rectifying is recycled to organic solvent recycling can 8.
All designs of the present invention, automatically controlled, motor are provided with explosion-protection equipment.
All technical process of the present invention are by being arranged on switch board（It is not drawn into figure）Interior microcomputer programmable controller is complete
Control is automatically performed, all detection datas are all uploaded to micro computer and carry out Centralizing inspection.Because software does not protect model in the present invention
Enclose, do not elaborate herein.
Claims (5)
1. a kind of organic exhaust gas decentralised adsorption concentrates desorption recovery system, including adsorbent equipment, desorption retracting device and monitoring
Device；Described desorption retracting device include heater, blower fan, parsing gas tank, ice chest, parsing pump, organic solvent recycling can,
Filter, condenser, vacuum tank；Described monitoring system includes gas detector, pressure gauge and each control valve, and its feature exists
In：Described adsorbent equipment is at least two groups and is connected in parallel with desorption retracting device that every group of adsorbent equipment includes casing and setting
Adsorption tanks in casing, described adsorption tanks at least one adsorption saturation adsorption tanks to be resolved and one it is unadsorbed or
The adsorption tanks of unadsorbed saturation；Parsing gas feed is provided with the top of the adsorption tanks and exhaust outlet, the bottom of side are set
It is equipped with exhaust gas inlet, bottom and is provided with solvent outlet, is internally provided with sorbing material；Parse gas feed by valve successively with
Heater, blower fan and the connection of resolution gas body tank；Exhaust gas inlet is connected by valve and ice chest, parsing pump and organic solvent recycling can
Connect, import of the solvent outlet by valve successively with filter and condenser is connected, and exhaust outlet passes through valve and gas detector
Connection, the outlet of condenser is connected by valve with parsing gas tank and ice chest respectively, vacuum tank respectively with condenser and ice chest
Connection, while being connected by valve with organic solvent recycling can.
2. a kind of organic exhaust gas decentralised adsorption according to claim 1 concentrates desorption recovery system, it is characterised in that：Case
Body is the container structure of standard, and adsorption tanks are embedded in casing.
3. a kind of organic exhaust gas decentralised adsorption according to claim 1 concentrates desorption recovery system, it is characterised in that：Inhale
Parsing gas feed, exhaust gas inlet, exhaust outlet and the solvent outlet of attached tank both pass through casing and connected by flexible joint and valve
Connect.
4. a kind of organic exhaust gas decentralised adsorption according to claim 3 concentrates desorption recovery system, it is characterised in that：It is soft
Property joint is made up of snap joint or flange and metal hose, and snap joint or flange are fixedly connected on the two ends of metal hose.
5. the method that organic exhaust gas decentralised adsorption described in a kind of usage right requirement 1 concentrates desorption recovery system, including absorption
With desorption recovery process, it is characterised in that：Described absorption process is given up using independent, separable adsorbent equipment distributing
Aspiration is attached, and described desorption recovery process is used reclaims base concentration progress desorption recovery in desorption；Will be described independent, separable
Adsorbent equipment respectively by deduster be connected to Waste gas outlet adsorb waste gas, after adsorption saturation, be delivered to desorption reclaim base
Ground is concentrated and is desorbed, and the mixed solvent after desorption is by separating and recovering to obtain organic solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610036409.8A CN105498384B (en) | 2016-01-20 | 2016-01-20 | A kind of organic exhaust gas decentralised adsorption concentrates desorption recovery system and method |
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| CN201610036409.8A CN105498384B (en) | 2016-01-20 | 2016-01-20 | A kind of organic exhaust gas decentralised adsorption concentrates desorption recovery system and method |
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| CN105498384A CN105498384A (en) | 2016-04-20 |
| CN105498384B true CN105498384B (en) | 2017-09-19 |
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| CN106823682A (en) * | 2017-02-24 | 2017-06-13 | 吴燕华 | Decentralised adsorption, the waste gas cleaning system and purification method of concentrating desorption |
| CN106693544A (en) * | 2017-03-15 | 2017-05-24 | 湖南思为能源环保工程有限公司 | Filtering device for painting room |
| CN109012014A (en) * | 2018-06-22 | 2018-12-18 | 佛山市墺林环保科技有限公司 | A kind of method and device of exhaust gas active-carbon adsorption desorption condensing recovery |
| CN110871971A (en) * | 2018-09-03 | 2020-03-10 | 中国石油化工股份有限公司 | Device and method for recycling tertiary oil gas of gas station |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101637686B (en) * | 2009-09-07 | 2011-10-12 | 孙宗长 | Method for organic waste gas recovery by adopting secondary adsorption |
| JP5509759B2 (en) * | 2009-09-17 | 2014-06-04 | 東洋紡株式会社 | Organic solvent-containing gas recovery system |
| CN104289072A (en) * | 2014-07-16 | 2015-01-21 | 泉州市天龙环境工程有限公司 | Cascade recovery apparatus and method for benzene hydrocarbon volatile gases |
| CN204247028U (en) * | 2014-11-07 | 2015-04-08 | 嘉园环保有限公司 | The device of vacuum desorption recycling organic exhaust gas |
| CN205461452U (en) * | 2016-01-20 | 2016-08-17 | 苏州大令环保技术有限公司 | Desorption recovery system is concentrated in distributed absorption of organic waste gas |
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